LayoutTests/webgl/2.0.0/resources/webgl_test_files/conformance/glsl/misc/attrib-location-length-limits.html - WebKit - Git at Google

 <!DOCTYPE html>
 <html>
 <head>
 <meta charset="utf-8">
 <!--

 /*
 ** Copyright (c) 2012 The Khronos Group Inc.
 **
 ** Permission is hereby granted, free of charge, to any person obtaining a
 ** copy of this software and/or associated documentation files (the
 ** "Materials"), to deal in the Materials without restriction, including
 ** without limitation the rights to use, copy, modify, merge, publish,
 ** distribute, sublicense, and/or sell copies of the Materials, and to
 ** permit persons to whom the Materials are furnished to do so, subject to
 ** the following conditions:
 **
 ** The above copyright notice and this permission notice shall be included
 ** in all copies or substantial portions of the Materials.
 **
 ** THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 ** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 ** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 ** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
 ** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
 ** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
 ** MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
 */

 -->
 <title>WebGL attrib location length tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
 <link rel="stylesheet" href="../../../resources/glsl-feature-tests.css"/>
 <script src="../../../js/js-test-pre.js"></script>
 <script src="../../../js/webgl-test-utils.js"> </script>
 </head>
 <body>
 <canvas id="example" width="50" height="50">
 There is supposed to be an example drawing here, but it's not important.
 </canvas>
 <div id="description">Verify limits on the lengths of attribute locations per WebGL spec, "Maximum Uniform and Attribute Location Lengths".</div>
 <div id="console"></div>
 <script id="goodVertexShader" type="x-shader/x-vertex">
 // A vertex shader where the needed attrib location is exactly 256 characters.
 attribute vec4 vPosition0123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456;

 void main()
 {
     gl_Position = vPosition0123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456;
 }
 </script>
 <script id="badVertexShader" type="x-shader/x-vertex">
 // A vertex shader where the needed attrib location is 257 characters.
 attribute vec4 vPosition01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567;

 void main()
 {
     gl_Position = vPosition01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567;
 }
 </script>
 <script id="fragmentShader" type="x-shader/x-fragment">
 precision mediump float;

 void main() {
     gl_FragColor = vec4(1.0, 0.0, 0.0, 1.0);
 }
 </script>
 <script>
 "use strict";
 description("test attrib location length limit");

 var wtu = WebGLTestUtils;
 var gl = wtu.create3DContext("example");

 debug("Test attrib location underneath the length limit");
 var program = wtu.loadProgramFromScript(gl, "goodVertexShader", "fragmentShader");
 shouldBe('gl.getProgramParameter(program, gl.LINK_STATUS)', 'true');
 var attrib256Name = "vPosition0123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456";
 gl.bindAttribLocation(program, 0, attrib256Name);
 wtu.glErrorShouldBe(gl, gl.NONE);
 var attribLoc = gl.getAttribLocation(program, attrib256Name);
 if (attribLoc == -1) {
     testFailed("attrib location was -1, should not be");
 } else {
     testPassed("attrib location should not be -1");
 }
 wtu.glErrorShouldBe(gl, gl.NONE);

 debug("Test attrib location over the length limit");
 var attrib257Name = attrib256Name + "7";

 debug("Shader compilation or link should fail");
 shouldBe('wtu.loadProgramFromScriptExpectError(gl, "badVertexShader", "fragmentShader")', 'null');
 wtu.glErrorShouldBe(gl, gl.NONE);

 debug("Attempt to bind too-long attrib location should produce error");
 program = gl.createProgram();
 gl.bindAttribLocation(program, 0, attrib257Name);
 wtu.glErrorShouldBe(gl, gl.INVALID_VALUE);

 debug("Attempt to fetch too-long attrib location should produce error");
 program = wtu.loadStandardProgram(gl);
 shouldBe('gl.getAttribLocation(program, attrib257Name)', '-1');
 wtu.glErrorShouldBe(gl, gl.INVALID_VALUE);

 var successfullyParsed = true;
 </script>
 <script src="../../../js/js-test-post.js"></script>
 </body>
 </html>
	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8">
	<!--

	/*
	** Copyright (c) 2012 The Khronos Group Inc.
	**
	** Permission is hereby granted, free of charge, to any person obtaining a
	** copy of this software and/or associated documentation files (the
	** "Materials"), to deal in the Materials without restriction, including
	** without limitation the rights to use, copy, modify, merge, publish,
	** distribute, sublicense, and/or sell copies of the Materials, and to
	** permit persons to whom the Materials are furnished to do so, subject to
	** the following conditions:
	**
	** The above copyright notice and this permission notice shall be included
	** in all copies or substantial portions of the Materials.
	**
	** THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
	** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
	** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
	** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
	** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
	** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
	** MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
	*/

	-->
	<title>WebGL attrib location length tests</title>
	<link rel="stylesheet" href="../../../resources/js-test-style.css"/>
	<link rel="stylesheet" href="../../../resources/glsl-feature-tests.css"/>
	<script src="../../../js/js-test-pre.js"></script>
	<script src="../../../js/webgl-test-utils.js"> </script>
	</head>
	<body>
	<canvas id="example" width="50" height="50">
	There is supposed to be an example drawing here, but it's not important.
	</canvas>
	<div id="description">Verify limits on the lengths of attribute locations per WebGL spec, "Maximum Uniform and Attribute Location Lengths".</div>
	<div id="console"></div>
	<script id="goodVertexShader" type="x-shader/x-vertex">
	// A vertex shader where the needed attrib location is exactly 256 characters.
	attribute vec4 vPosition0123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456;

	void main()
	{
	gl_Position = vPosition0123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456;
	}
	</script>
	<script id="badVertexShader" type="x-shader/x-vertex">
	// A vertex shader where the needed attrib location is 257 characters.
	attribute vec4 vPosition01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567;

	void main()
	{
	gl_Position = vPosition01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567;
	}
	</script>
	<script id="fragmentShader" type="x-shader/x-fragment">
	precision mediump float;

	void main() {
	gl_FragColor = vec4(1.0, 0.0, 0.0, 1.0);
	}
	</script>
	<script>
	"use strict";
	description("test attrib location length limit");

	var wtu = WebGLTestUtils;
	var gl = wtu.create3DContext("example");

	debug("Test attrib location underneath the length limit");
	var program = wtu.loadProgramFromScript(gl, "goodVertexShader", "fragmentShader");
	shouldBe('gl.getProgramParameter(program, gl.LINK_STATUS)', 'true');
	var attrib256Name = "vPosition0123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456";
	gl.bindAttribLocation(program, 0, attrib256Name);
	wtu.glErrorShouldBe(gl, gl.NONE);
	var attribLoc = gl.getAttribLocation(program, attrib256Name);
	if (attribLoc == -1) {
	testFailed("attrib location was -1, should not be");
	} else {
	testPassed("attrib location should not be -1");
	}
	wtu.glErrorShouldBe(gl, gl.NONE);

	debug("Test attrib location over the length limit");
	var attrib257Name = attrib256Name + "7";

	debug("Shader compilation or link should fail");
	shouldBe('wtu.loadProgramFromScriptExpectError(gl, "badVertexShader", "fragmentShader")', 'null');
	wtu.glErrorShouldBe(gl, gl.NONE);

	debug("Attempt to bind too-long attrib location should produce error");
	program = gl.createProgram();
	gl.bindAttribLocation(program, 0, attrib257Name);
	wtu.glErrorShouldBe(gl, gl.INVALID_VALUE);

	debug("Attempt to fetch too-long attrib location should produce error");
	program = wtu.loadStandardProgram(gl);
	shouldBe('gl.getAttribLocation(program, attrib257Name)', '-1');
	wtu.glErrorShouldBe(gl, gl.INVALID_VALUE);

	var successfullyParsed = true;
	</script>
	<script src="../../../js/js-test-post.js"></script>
	</body>
	</html>